/**
 * 
 */
function getUploader(arr,obj){
	var uploader = WebUploader.create({
	    // swf文件路径
	    swf: '/static/webuploader/Uploader.swf',
	    // 文件接收服务端。
	    server: arr.server,
	    // 选择文件的按钮。可选。
	    // 内部根据当前运行是创建，可能是input元素，也可能是flash.
	    pick: arr.pick,
	    formData:arr.formData,
	    //不压缩image, 默认如果是jpeg，文件上传前会压缩一把再上传！
	    resize: false,
	    auto:true,
	    fileNumLimit: !!arr.fileNumLimit?arr.fileNumLimit:1,
	    fileSizeLimit: 5 * 1024 * 1024,    // 5 M
	    fileSingleSizeLimit: 1 * 1024 * 1024,    // 1 M
	    accept:{
	        title: 'Images',
	        extensions: 'gif,jpg,jpeg,bmp,png',
	        mimeTypes: 'image/*'
	    }
	});
	// 当有文件被添加进队列的时候
	uploader.on( 'fileQueued', function( file ) {
	    $list = $(arr.container).find(".uploader-list");
	    $list.append( '<div id="' + file.id + '" class="item">' +
	        '<h4 class="info">' + file.name + '</h4>' +
	        '<p class="state">等待上传...</p>' +
	    '</div>' );
	});
	//文件上传过程中创建进度条实时显示。
	uploader.on( 'uploadProgress', function( file, percentage ) {
	    var $li = $( '#'+file.id ),
	        $percent = $li.find('.progress .progress-bar');
	    // 避免重复创建
	    if ( !$percent.length ) {
	        $percent = $('<div class="progress progress-striped active">' +
	          '<div class="progress-bar" role="progressbar" style="width: 0%">' +
	          '</div>' +
	        '</div>').appendTo( $li ).find('.progress-bar');
	    }
	    $li.find('p.state').text('上传中');
	    $percent.css( 'width', percentage * 100 + '%' );
	});

	uploader.on( 'uploadSuccess', function(file,response) {
	    $( '#'+file.id ).find('p.state').text('已上传');
	    if(arr.successHandler){
	    	arr.successHandler(file,response);
	    }
	});
	uploader.on( 'uploadError', function( file ) {
	    $('#'+file.id ).find('p.state').text('上传出错');
	});
	uploader.on( 'uploadComplete', function( file ) {
	    $('#'+file.id ).find('.progress').fadeOut();
	    if(arr.completeHandler){
	    	arr.completeHandler(file,response);
	    }
	});
	uploader.on('error', function(type,p1,p2){
		if(type=='Q_EXCEED_NUM_LIMIT'){
			$.messager.alert("提示","文件个数超过限制","error");
		}else if(type=='Q_EXCEED_SIZE_LIMIT'){
			$.messager.alert("提示","文件总大小超过限制","error");
		}else if(type=='F_EXCEED_SIZE'){
			$.messager.alert("提示","单个文件大小超过限制","error");
		}else if(type=='Q_TYPE_DENIED'){
			$.messager.alert("提示","文件格式错误","error");
		}
	});
	uploader.on( 'uploadFinished', function() {
	    resetUploader(uploader);
	});
	return uploader;
}

function resetUploader(uploader){
	var files = uploader.getFiles();
	for(var i in files){
		uploader.removeFile(files[i]);
		var $li = $('#'+files[i].id);
        $li.off().find('.file-panel').off().end().remove();
	}
	uploader.reset();
}
	